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    Stationary Solitary Waves in Turbulent Open-Channel Flow: Analysis and Experimental Verification

    Source: Journal of Hydraulic Engineering:;2016:;Volume ( 142 ):;issue: 001
    Author:
    Wilhelm Schneider
    ,
    Youichi Yasuda
    DOI: 10.1061/(ASCE)HY.1943-7900.0001056
    Publisher: American Society of Civil Engineers
    Abstract: Two-dimensional turbulent free-surface flow with Froude numbers close to 1 is considered. The roughness of the bottom of the channel is allowed to vary with the space coordinate, leading to small variations in the bottom friction coefficient. In a predecessor of the present paper, an extended Korteweg-deVries (KdV) equation for the surface elevation was derived by means of an asymptotic analysis which is free of turbulence modeling. The steady-state version of the extended KdV equation has solutions that describe stationary solitary waves. In the present paper, previous results of the analysis are extended with the aim of providing a basis for the experimental investigations. A comparison of measured surface elevations with theoretical predictions is shown, and possible sources of small discrepancies are discussed. In an appendix, the structure of solutions that describe solitary waves with a tail is investigated.
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      Stationary Solitary Waves in Turbulent Open-Channel Flow: Analysis and Experimental Verification

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    contributor authorWilhelm Schneider
    contributor authorYouichi Yasuda
    date accessioned2017-12-16T09:08:48Z
    date available2017-12-16T09:08:48Z
    date issued2016
    identifier other%28ASCE%29HY.1943-7900.0001056.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4239164
    description abstractTwo-dimensional turbulent free-surface flow with Froude numbers close to 1 is considered. The roughness of the bottom of the channel is allowed to vary with the space coordinate, leading to small variations in the bottom friction coefficient. In a predecessor of the present paper, an extended Korteweg-deVries (KdV) equation for the surface elevation was derived by means of an asymptotic analysis which is free of turbulence modeling. The steady-state version of the extended KdV equation has solutions that describe stationary solitary waves. In the present paper, previous results of the analysis are extended with the aim of providing a basis for the experimental investigations. A comparison of measured surface elevations with theoretical predictions is shown, and possible sources of small discrepancies are discussed. In an appendix, the structure of solutions that describe solitary waves with a tail is investigated.
    publisherAmerican Society of Civil Engineers
    titleStationary Solitary Waves in Turbulent Open-Channel Flow: Analysis and Experimental Verification
    typeJournal Paper
    journal volume142
    journal issue1
    journal titleJournal of Hydraulic Engineering
    identifier doi10.1061/(ASCE)HY.1943-7900.0001056
    treeJournal of Hydraulic Engineering:;2016:;Volume ( 142 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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